A) Glycogen
B) Glucose
C) Pyruvic acid
D) L-lactic acid
Correct Answer: D
Solution :
[d] \[\underset{\begin{smallmatrix} stored\,in \\ the\,form\,of\,\downarrow \\ Glycogen \end{smallmatrix}}{\mathop{Glucose}}\,\xrightarrow[\begin{smallmatrix} (does\,not\,need \\ oxygen;\,need \\ only\,enzymes) \end{smallmatrix}]{{}}\] \[\underset{Lactic\,acid}{\mathop{\underset{\downarrow }{\mathop{Pyruvic\,acid}}\,}}\,\xrightarrow{{{O}_{2}}}C{{O}_{2}}+{{H}_{2}}O\] During vigorous exercise sufficient oxygen is not available to meet the energy demand so, energy is derived through conversion of pyruvic acid to lactic acid.
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